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authorMark Dickinson <dickinsm@gmail.com>2009-11-18 19:33:35 (GMT)
committerMark Dickinson <dickinsm@gmail.com>2009-11-18 19:33:35 (GMT)
commitbd15a06fd3ac256d4f2780c85a9f7e6def1ecd1f (patch)
treed6f4201cd2881e1b646906b5923c51455d96be73 /Include/floatobject.h
parent0516f8138643ca49a6e5fd56e0aa546829465a37 (diff)
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Issue #7117, continued: Change round implementation to use the correctly-rounded
string <-> float conversions; this makes sure that the result of the round operation is correctly rounded, and hence displays nicely using the new float repr.
Diffstat (limited to 'Include/floatobject.h')
-rw-r--r--Include/floatobject.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/Include/floatobject.h b/Include/floatobject.h
index 6c11036..54e8825 100644
--- a/Include/floatobject.h
+++ b/Include/floatobject.h
@@ -127,6 +127,13 @@ PyAPI_FUNC(PyObject *) _PyFloat_FormatAdvanced(PyObject *obj,
char *format_spec,
Py_ssize_t format_spec_len);
+/* Round a C double x to the closest multiple of 10**-ndigits. Returns a
+ Python float on success, or NULL (with an appropriate exception set) on
+ failure. Used in builtin_round in bltinmodule.c. */
+PyAPI_FUNC(PyObject *) _Py_double_round(double x, int ndigits);
+
+
+
#ifdef __cplusplus
}
#endif